Hanging neck fan

Abstract

A hanging neck fan is disclosed, including a main board, a battery, a first fan wheel and a second fan wheel. The battery is electrically connected to the main board, and the first fan wheel and the second fan wheel are electrically connected to the main board respectively. The hanging neck fan further includes a first housing and a second housing, the first housing and/or the second housing are configured with the first fan wheel and the second fan wheel inside. The first fan wheel and the second fan wheel are disposed back-to-back, the first fan wheel is configured to blow air toward a free end of the first housing. Thus the hanging neck fan can effectively improve wearing comfort, and an axial flow fan is used, making such product less expensive and more efficient in blowing air.

What is claimed is: 
     
         1 . A hanging neck fan, comprising a main board, a battery, a first fan wheel and a second fan wheel; wherein the battery is electrically connected to the main board, the first fan wheel and the second fan wheel are electrically connected to the main board respectively; and
 wherein the hanging neck fan further comprises a first housing and a second housing, the first housing and the second housing are configured with the first fan wheel and the second fan wheel inside, respectively;   wherein the first fan wheel and the second fan wheel are disposed back-to-back, the first fan wheel is configured to blow air toward a free end of the first housing and also a flow direction of air blown from the first fan wheel is along an axis of the first fan wheel;   wherein the second fan wheel is configured to blow air toward a free end of the second housing and also a flow direction of air blown from the second fan wheel is along an axis of the second fan wheel, and the first fan wheel and the second fan wheel are fan wheels of axial fans;   wherein the hanging neck fan further comprises a flexible connector, the flexible connector being disposed between the first housing and the second housing and connected to the first housing and the second housing, the first fan wheel and the second fan wheel are configured at both ends of the flexible connector, respectively;   wherein the both ends of the flexible connector are configured with a first “L”-shaped mating surface and a second “L”-shaped mating surface, one end of the first housing that is connected to the flexible connector is configured with a third “L”-shaped mating surface, and one end of the second housing that is connected to the flexible connector is configured with a fourth “L”-shaped mating surface;   wherein the first “L”-shaped mating surface is configured to fit with the third “L”-shaped mating surface for connection, and the second “L”-shaped mating surface is configured to fit with the fourth “L”-shaped mating surface for connection;   wherein the first “L”-shaped mating surface and the second “L”-shaped mating surface are disposed axially symmetrically with respect to a center axis of the flexible connector in a forward projection plane of the hanging neck fan;   wherein both ends of the flexible connector are configured with a first fan wheel bracket and a second fan wheel bracket, respectively, and the first fan wheel bracket and the second fan wheel bracket are embedded with both ends of the flexible connector, respectively; and   wherein the first fan wheel is disposed on the first fan wheel bracket, and the second fan wheel is disposed on the second fan wheel bracket.   
     
     
         2 . The hanging neck fan according to  claim 1 , wherein a portion of the body of the first fan wheel bracket is configured to be protruded from a longitudinal plane of the first “L”-shaped mating surface, and a portion of the body of the second fan wheel bracket is configured to be protruded from a longitudinal plane of the second “L”-shaped mating surface; and
 wherein an end of the first housing where the third “L”-shaped mating surface is located is configured to form a first storage space, and an end of the second housing where the fourth “L”-shaped mating surface is located is configured to form a second storage space; 
 wherein the portion of the body of the first fan wheel bracket that is protruded from the longitudinal plane of the first “L”-shaped mating surface is configured to be housed in the first storage space when the first “L”-shaped mating surface is fitted with the third “L”-shaped mating surface for connection; and 
 wherein the portion of the body of the second fan wheel bracket that is protruded from the longitudinal plane of the second “L”-shaped mating surface is configured to be housed in the second storage space when the second “L”-shaped mating surface is fitted with the fourth “L”-shaped mating surface for connection. 
 
     
     
         3 . The hanging neck fan according to  claim 1 , wherein the flexible connector is formed in a shell shape with a “U” curvature in a middle portion where protruding from a forward projection direction of the hanging neck fan, and the shell shape with the “U” curvature is configured with an air inlet on a housing surface thereon. 
     
     
         4 . The hanging neck fan according to  claim 1 , wherein the first housing is configured with a first air duct along a direction of the free end thereon, and the second housing is configured with a second air duct along a direction of the free end thereon; and
 wherein the first housing is configured with a first air outlet along a direction of the first air duct, and the second housing is configured with a second air outlet along a direction of the second air duct; and   wherein the first air outlet and the second outlet are configured to be disposed in a direction toward a user's head.   
     
     
         5 . The hanging neck fan according to  claim 1 , wherein a plane where the first fan wheel is located is paralleled to a plane where the second fan wheel is located. 
     
     
         6 . The hanging neck fan according to  claim 1 , wherein a plane where the first fan wheel is located is configured to be intersected with a plane where the second fan wheel is located to form a first angle, and the first angle is an angle greater than 0° and less than 360°.